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All Products > Electromechanical > Circuit Breakers
Circuit breakers are available at Mouser Electronics from industry leading manufacturers.  Mouser is an authorized distributor for many circuit breaker manufacturers including Altech, Carling, Cooper Bussmann, Littelfuse, Schurter, TE Connectivity, & more. Please view our selection of circuit breakers below.
Category   Electromechanical >  Circuit Breakers

Available Filters 7,500 Matches  

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Compare up to 20 parts.
Select ImageMouser Part # Mfr. Part # Mfr. Description Documents Availability Pricing
(USD)
Quantity RoHS Product Product Type Current Rating Voltage Rating AC Voltage Rating DC Number of Poles Actuator Type Circuit Function Series Operating Temperature Range Illuminated
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TE Connectivity / P&B W23-X1A1G-40
Enlarge
TE Connectivity / P&B Circuit Breakers 40A PUSH/PULL ACT.
Page 2,131

Data Sheet
168
In Stock
1: $25.17
10: $24.52
25: $22.02
50: $19.93
100: $17.07



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 40 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-15
Enlarge
TE Connectivity / P&B Circuit Breakers 15A PUSH/PULL ACT.
Page 2,131

Data Sheet
102
In Stock
1: $25.17
10: $24.52
25: $22.02
50: $19.93
100: $17.07



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-10
Enlarge
TE Connectivity / P&B Circuit Breakers 10A PUSH/PULL ACT.
Page 2,131

Data Sheet
141
In Stock
1: $25.17
10: $24.52
25: $22.02
50: $19.93
100: $17.07



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-5
Enlarge
TE Connectivity / P&B Circuit Breakers 5A PUSH/PULL ACT.
Page 2,131

Data Sheet
205
In Stock
1: $25.17
10: $24.52
25: $22.02
50: $19.93
100: $17.07



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
Schurter 4430.2305
Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 15A
Page 2,134

Data Sheet
114
In Stock
1: $26.23
10: $23.72
25: $21.17
50: $20.00



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 15 A 240 V 60 V 2 Poles Rocker ON/OFF TA45 - 10 C to + 55 C
Schurter 4430.2306
Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 20A
Page 2,134

Data Sheet
69
In Stock
1: $27.69
10: $24.61
25: $22.14
50: $20.90



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 20 A 240 V 60 V 2 Poles Rocker ON/OFF TA45 - 10 C to + 55 C
TE Connectivity / P&B W31-X2M1G-50
Enlarge
TE Connectivity / P&B Circuit Breakers 50A TOGGLE ACTUATOR
Page 2,131

Data Sheet
117
In Stock
1: $29.52
10: $27.54
25: $25.82
50: $23.36
100: $18.45



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 50 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-5
Enlarge
TE Connectivity / P&B Circuit Breakers 5A TOGGLE ACTUATOR
Page 2,131

Data Sheet
149
In Stock
More Info Available
1: $29.54
10: $27.56
25: $25.84
50: $23.37
100: $21.76



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-30
Enlarge
TE Connectivity / P&B Circuit Breakers 30A TOGGLE ACTUATOR
Page 2,131

Data Sheet
85
In Stock
1: $29.54
10: $27.56
25: $25.84
50: $23.37
100: $21.76



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 30 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-25
Enlarge
TE Connectivity / P&B Circuit Breakers 25A TOGGLE ACTUATOR
Page 2,131

Data Sheet
69
In Stock
1: $30.10
10: $28.08
25: $26.33
50: $23.82
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 25 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-15
Enlarge
TE Connectivity / P&B Circuit Breakers 15A TOGGLE ACTUATOR
Page 2,131

Data Sheet
70
In Stock
1: $30.71
10: $28.65
25: $26.87
50: $24.30
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-10
Enlarge
TE Connectivity / P&B Circuit Breakers 10A TOGGLE ACTUATOR
Page 2,131

Data Sheet
122
In Stock
1: $32.73
10: $30.54
25: $28.63
50: $25.90



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-1
Enlarge
TE Connectivity / P&B Circuit Breakers 1A PUSH/PULL ACT.
Page 2,131

Data Sheet
58
In Stock
1: $35.69
10: $33.31
25: $31.23
50: $28.26
100: $22.31



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-3
Enlarge
TE Connectivity / P&B Circuit Breakers 3A PUSH/PULL ACT.
Page 2,131

Data Sheet
127
In Stock
More Info Available
1: $36.42
10: $33.99
25: $31.86
50: $28.83
100: $26.93



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 3 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
Phoenix Contact 2800840
Enlarge
Phoenix Contact Circuit Breakers CB TM1 5A SFB P
This product may require additional documentation to export from the United States.
Page 2,133

Data Sheet
49
In Stock
1: $41.84
10: $38.19
25: $37.19
50: $35.96
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 5 A 240 V, 277 V 50 V 1 Pole Slide Trip Free CB TM1 - 30 C to + 60 C Not Illuminated
Phoenix Contact 5531082
Enlarge
Phoenix Contact Circuit Breakers THERMO CB 5.0A
Page 2,133

Data Sheet
54
In Stock
1: $42.14
10: $39.13
25: $36.91
50: $36.86
100: View



Min.: 1
Mult.: 1
Thermal Magnetic Circuit Breakers Circuit Breakers 5 A 1 Pole Pushbutton TMC - 10 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-2
Enlarge
TE Connectivity / P&B Circuit Breakers 2A TOGGLE ACTUATOR
Page 2,131

Data Sheet
53
In Stock
1: $45.30
10: $42.52
25: $39.63
50: $35.85
100: $28.31



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W68-X2Q12-10
Enlarge
TE Connectivity / P&B Circuit Breakers 10A 2 POLE 2 TOGGLE
Page 2,132

Data Sheet
124
In Stock
1: $50.30
10: $48.13
25: $44.01
50: $39.81
100: $33.61



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 10 A 277 V 2 Poles Toggle Series Trip W6 - 40 C to + 85 C Not Illuminated
Carling Technologies MS1-B-10-430-2-1CB-A-A
Enlarge
Carling Technologies Circuit Breakers Sld Toggle Cir Brkr
Data Sheet 63
In Stock
1: $59.49
10: $54.08
25: $49.58
50: $45.75



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector 3 A 50 V 1 Pole Toggle Series Trip (Current) MS Series - 40 C to + 85 C Not Illuminated
Carling Technologies CA2-B0-34-630-121-D
Enlarge
Carling Technologies Circuit Breakers 30 A TWO POLE
Page 2,129

Data Sheet
119
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03
100: $43.45



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 80 V 2 Poles Handle Series Trip (Current) C - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-620-32E-HB
Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 20A
Page 2,129

Data Sheet
50
In Stock
1: $77.49
5: $52.24
10: $44.75
25: $41.77



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 600 V 125 V 2 Poles Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-450-32E-HB
Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 5A
Page 2,129

Data Sheet
96
In Stock
1: $77.49
5: $52.23
10: $44.76
25: $41.78



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 5 A 600 V 125 V 2 Poles Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Phoenix Contact 0914138
Enlarge
Phoenix Contact Circuit Breakers TMC 1 F1 100 5.0A
Data Sheet 24
In Stock
1: $80.19
10: $74.43
25: $71.60
50: $68.77
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 5 A 250 V 65 V 1 Pole Toggle - 30 C to + 60 C Not Illuminated
Altech 1BU3R
Enlarge
Altech Circuit Breakers 3A B Characteristic UL 1077 1 POLE
Page 2,938

Data Sheet
135
In Stock
1: $12.00
10: $10.23
50: $10.19
100: $9.98
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices B-Trip 3 A 277 V 1 Pole Handle Supplementary Protectors R 0 C to + 40 C Not Illuminated
Altech 3DU6R
Enlarge
Altech Circuit Breakers 6A D Characteristic UL 1077 3 POLE
Page 2,938

Data Sheet
179
In Stock
1: $34.62
10: $31.41
50: $29.48
100: $28.89
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices D-Trip 6 A 277 V 3 Poles Handle Supplementary Protectors R - 25 C to + 60 C Not Illuminated
Compare up to 20 parts.
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